Elevator



ELEVATOR 2 Sheets-SheetI 1 Filed Oct. 5. 1939 34 6 5 4 Y ,PN ,7 m JWM gwww w V4-1 wm l e w/ n l 1/. o 4 a f (j. 5 N. IL 4 4 4 A 4 4 4 4 4 4 444 44444444 Mm `@../W vw MIJ A A 4 l 4 @Lw a i w f( s 4 Lw .K n 2 fw l 3Uv mv.

Patented Oct. 13, 1942 UNITED STATES PATENT OFFICE 2,298,507'V ELEvA'roRArthur J. Penick and kirby T. Penick, Houston, Tex.

Application October 6, 1939, ySerial No. 298,281

(ci. 2426s 4 Claims.

This invention relates to an elevator.

An object ofthe invention is to provide an elevator particularly adapted'for handling a plurality of strings of pipe or tubing whilesimultaneously makingr up or breaking out thestrings, in lowering thesame into or withdrawing .the same from a well.

Another object of the invention is to provide, in an elevator, a novel'slip jaw assembly for engaging and supporting a plurality 'of stringsof pipe or tubing,

The invention also embodies novel means for actuating the slip jaws intoactive Ior inactive positions. Y

With the above and YVother objects 'in view the invention has particularrelation to certain novel features of Construction, 'operation andarrangement Vo'i parts, an example of which is given in thisspecification and illustrated in the .accompanying drawings,'wl'i'erein-Y y Figure 1 'shows a planV view of the elevator shownpartly in section.

Figure 2 shows a vertical, sectional view taken on the line 2-2 ofFigure 1.

Figure 3 shows a vertical, sectional viewtaken on the line 3-3 'ofFigure 1, and

Figure 4 `shows a fragmentary, vertical, 'Sectional view 'taken 'on theline 4-''4 'of Figure Ll.

Referring 'now more particularly 'to the drawings, wherein like'numerals "of re'ference "designate the same parts in 'each of 4-thefigures, rthe numerals I and 2 designate complementary sections of the'elevatory vloodywhichjare substantially similar in general'contour. Atone-side *the section I is Vprovided with the upper and 'lower spacedhinge 'members 3, 4'van/d tted clo'sely'between the hinge members 3, 4'there is 4a hinge 'member 5 ncarried bythe section 2. The :hingemembers 3, 4, 5 have an aligned bearinglto vreceive the hinge boltShaving the ie'nlargedh'ea'd 1 on its upper end and whoselower'endlisthreaded to receive the retaining nut 8. A hinge `betweenthe sections, I, 2 is `thus formed. l g

At the other side the 'section 2 'isjprovidedvwith the upper and lowerspaced lugs '9, `IIJ andthe section I is provided withan intermediatevlugfll adapted to t between 'the lugs-i9, IU, when the elevator is inclosed position'and these lugsg, l, II have a bearing through them toreceive fthe latch bolt 'I 2 whose upper end is provided'with an theelevator may be swung 'into 'open position.

When theelevator is clos'ed'about'the tubingthe cal Lrod's @43,143raridfflM, 44. 45

lfanges and :through :enlarged bores fas145, vIIIi in may be engaged.Spaced beneath these respective hooks fare the arms I9, 20 extendingradially outwardly from'fthe respective body sections and retainingbolts 2|, 22 are `fitted downwardly through the bail hooks and throughthe corresponding arms I9, 20 and are retained in place by the heads 23,24 at their upper ends 'and the nuts 25, 26 at their lower ends.

The bails II, 18 are provided for engagement with the hook of the'conventional travelling block which is operable in the derrick by theappliances commonly used for such purposes.

lThe body sections ilan'd 2., at .their Vupper and lower ends, have theopposing complemental inwardlylext'ending Aanges 21, 128 a'nd 29, .30 asmore 'accurately shown .in Eigures 3 and 4. These up. per and .loweranges'have the central cutaway por-'tions providing the foblon'g upper'and lower slots 53|, 32 to :permit the passage, through the elevator of`the `tubing nrpnue, such as 33, 34.

'The leleviait'or :body :has the inside, upper `and lower, downwardlytapering seat`s`,3 5, ,3,6, which arel spaced apart .as shown fin.Figure 2 to provide an inside cylindrical inner wall 3l between them.'These upper :and .flower seats are approximately `circular v"in'horizontalfcross-section when the tbody .betweenthe supper ang'es2152.8 aand the lower Fanges 29,'30as shovmTinF-igures-S and4. ,Theylare -retained .against displacement by they `verti- 'Thejse retainingrods 43,5415 are fitted through ,the upper .and llowerfthe-slipjawsandzare retainedin vplace byf enlarged ,heads-latione-endiand nuts screwed :onto their thu's Ahave 15a `limited :upward andoutward, or downward and inward movement iasis necessary iniorfd'erltoreleasethem from, vLoricause .them to The facing sidesof thefA slipljawslhave :the i complemental vertical grooves 49, 49 and 50, 50 which Cilbroken up, the elevator is engaged about the tubing and then elevatedand held elevated by the usual tubing slips.

plings and the upper sections of the stringsare unscrewed from thecouplings so as to be laid aside. While the upper sections of the tubingare being unscrewed the slip jaws 38, 39 should be moved upwardly andoutwardly on their seats in the elevator body so as to release thetubing. Means have been provided for so moving said slip jaws which willnow be described.

Mounted to rotate on the vertical pivot pins I, 52 are the grip membersor handles 53, 54 whose inner ends are fitted through the transverseslots 55, 56 of the body sections I and 2. 'I'he inner ends of thesehandles are disc-like in form and have the arcuate cams 51, 58 on theirupper faces. The slip jaws 3B, 39 have the eX- ternal recesses 59, B0into which the inner ends of the handles project as shown more clearlyin Figure 4 and depending into the recesses 59, 60 and bearing againstthe cams 51, 58 are the bosses 6I, 62 whose lower ends are rounded oiland ride on the cam faces 51, 58. The operator may swing the gripmembers 53, 54 toward each other in the direction indicated by thearrows in Figure 1 causing the cam faces to act through the bosses 6I,62 and elevate the slip-jaws causing them to move upwardly and outwardlyso as to release the tubing.

When the upper sections of the tubing have been unscrewed from thestring beneath they may be swung to one side and with the jaws in saidreleased position the operator may then withdraw the pin I2 permittingthe elevators to swing open and release the pipe and the elevator maythen be lowered and engaged about the upper end of the string beneathfor the purpose of again elevating the string as before. the elevatorhas been engaged about the tubing the grips 53, 54 may again be swungabout toward each other so as to elevate the slip jaws to permit theelevator sections to be closed about the tubing with the slip jaws outof engagement with the tubing so that the pin I2 may be easily insertedthrough the aligned bearings of the lugs 9, IB, II and thereupon thegrips 53, 54 may be swung apart into the position shown in Figure 1 topermit the jaws to move downwardly and inwardly into their lowerposition and into engagement with the tubing. It will thus be seen thatprovision is made -for moving the slip jaws upwardly and outwardly inthe elevator body out of contact or engagement withthe tubing when it isdesired to withdraw the pin I2 or to insert it so that the bearingsthroughthe lugs 9, ID, II may easily' be brought into alignment topermit withdrawal or insertion of the pin I2 without binding.

It is obvious that the elevator may be manipulated in a similar mannerto that above described while making up the tubing and lowering thestring into the well.

It may be here noted that the sections I and 2 are provided with grips63, 63 and 64, 54 for easy handling of the elevator in carrying on thework for which it is intended.

These slips are engaged about the strings of tubing beneath tubingcougether at one side, means for releasably securing the sectionstogether at the other side, said body having an inside, downwardlyconverging seat, complemental slip jaws having external recesses anddepending bosses therein and shaped, externally, to conform to thecontour of and to fit on said seat and whose facing sides are shaped tot around and simultaneously grip a plurality of strings of tubing andmanually operable means mounted in the body and working in the recessesagainst the bosses whereby the jaws may be moved upwardly and outwardly.

2. An elevator of the character described comprising an elevator bodyformed of two complemental sections hinged together Vat one side, alatch -for releasably securing said sections together at the other side,said body having an inside, downwardly converging seat, a pair ofcomplemental slip jaws shaped to fit said seat, whoseinside faces areshaped to fit around and grip a plurality of strings of tubing, means onthe jaws to align the jaws with each other, flanges on the sectionshaving tubing receiving openings and substantially enclosing the seatand jaws, means for loosely mounting each of said jaws in the respectivesection, and means on the sections including cams effective to move thejaws out of wedging relationship in the seat.

3. An elevator of the character described comprising an elevator bodyformed of two complemental sections hinged together at one side, a latchfor releasably securing said sections together at the other side, saidbody having an inside, downwardly converging seat, a pair ofcomplemental slip jaws shaped externally to fit said seat and whoseinner sides present confronting flat faces having a pair of complementalvertical grooves which are internally toothed forming gripping facesadapted to engage about and grip separate strings of tubing in side byside relation, flanges on the sections, having tubing receiving openingssubstantially enclosing the seat and jaws, means for loosely mountingeach of said jaws in the respective section, means on the jaws to causeone to alignV with the other, depending bosses on the sections and cammeans on the sections arranged to co-act with the bosses to move thejaws out of seating relationship in the seat. Y

4. An elevator of the character described comprising an elevatorbodyhaving an inside downwardly converging seat, complemental slip jawsshaped, externally, to conform to the contour of and to t on said seatand whose inner sides are shapedto t around and simultaneously grip aplurality of strings of tubing, means mounted -in the body for elevatingthe jaws relative to the seat, said elevating means and the respectivejaws being provided one with cam means and the other with means toco-act with the cam means whereby, upon appropriate manipulation of the-elevating means, said slip jaws will be elevated relative'to the seat.

ARTHUR J. PENICK. KIRBY T. PENICK.

